android: Sort source files alphabetically

Sort the list of the Android HAL source file alphabetically.

Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

src/android/meson.build

@@ -44,9 +44,9 @@ subdir('cros')
 
 android_hal_sources = files([
     'camera3_hal.cpp',
-    'camera_hal_manager.cpp',
     'camera_device.cpp',
     'camera_hal_config.cpp',
+    'camera_hal_manager.cpp',
     'camera_metadata.cpp',
     'camera_ops.cpp',
     'camera_stream.cpp',